Herman bacharach



Feb. 13, 1923.

/N vE/vroe www Patented Feb. i3, i923.

HERMAN BACHARAGH, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO BACARACH INDUSTRIAL INSTR'UIVIENT COMPANY, A CORPORATION OF PENNSYLVANIA.

PROTECTING H001) OR CASING.

Application led January 31, 192i. Serial No. 441,277.

To @ZZ 'whom t may concer/lt.'

Be it known that I, HERMAN BAGHARAGH, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have made a new and useful Invention in Protecting Hoods or Casings, oi' which the iollowing is a specification.

The invention relates to protecting hoods or casings, and is designed particularly for use with instruments having recording drums such as gages and the like. Such drums are ordinarily covered by casings provided with windows, so that the record on the drums may be observed without removing the casing. Such casings must, however, be removed from time to time to remove the records and apply blanks. rlhe repeated removal and replacement of the casings under such conditions involves considerable labor and the windows are frequently broken in handling or while the oasings are removed, and while resting upon the floor or other support upon which it may have been placed. rlhe present inven tion is designed to overcome this inconvenience making the work ot covering and uncoverinothe drum racticall negligible and entirely eliminating the danger of injury to the-windows of the hood either in handling the hood or while such hood is in open position, One embodiment of the in- 1rention is illustrated in the accompanying drawings, wherein Figure 1 is a front elevation of a gage provided with the improved hood or casing for the recording drum, the dotted lines showing the hood in open position. Fig. 2 is a side elevation ot the device of Fig. l. Figs. 3 and a are enlarged front and side elevation views respectively of the hinge and stop construction at the lower edge of each halt of the hood with the hood in closed position. And Fig. 5 is a view corresponding to Fig. 3, but with the hood in open position.

Referring to the drawings, 1 is the casing of a gage loat, supported in position upon the wall 2 by means of the bracket 3 provided with the collars 4c and 5. Upon the top of the casing is a base member 6 carrying the recording drum 7 with the recording strip 8 thereon adapted to receive a record from the pen or pencil 9 (Fig. 2) operated from the float or other equivalent device in the car-sing 1, such mechanism all being well known and constituting no part of or limitation to the present invention, which` relates particularly to the hood construction.

The hood is formed in two halves, 10 and 11 shown in full lines in closed position in Fig. l, and in open position in dotted lines. These half hood members meet'and preferably overlap along the vertical line 12 when in closed position, the drum being visible through the windows 13 and la provided with suitable transparent sheets of glass, mica or composition. The half mem-` bers l0 and l1 are each provided at their lower edges with a pair of hinge lugs 15, 15 iitting on opposite sides of the lug 16 integral with the base 6. A pintle 17 extends through the three lugs.r

ln order to limit the opening movements oit the hood sections, the lugs 16 are provided with the inclined'stops 18 which engage the side walls of the hood members and support them in the positions indicated in dotted lines in Fig. 1. The centers of gravity of the hood members, when in this position, lie outside the points of pivotal support, so that when such members reach this position, the j are maintained by gravity until it is desired to close the hood. The opening thus provided is suiiicient to give the necessary access to the. drum for replacement of the record, for adjustment, or for any other purpose. At the same time, the sections may be easily removed entirely by withdrawing the pintles 17.

The embodiment oi the invention illustrated and described is inexpensive and simple, but it will be understood that considerable modification is possible without departing from the invention, particularly as to the details of the pivoting or hinge con* struction and as to the stop means. Thev stop means are preferably made integral with the hinge lugs on the base, but the stop means might be differently constructed and arranged, the invention comprehending any and all means for limiting the opening movements of the hood sections at the desired points.

What l claim is 1. A protecting device for a recording drum, comprising a cylindrical gage casing constituting a base, a pair of hood members each substantially semi-cylindrical in hori- Zonta] cross section inonntecl upon the base and pivotetl tliei'eto at their loweil onteieclges, and nieetin along their innei1 ifeitieal edges, ,and stop ineans to): limiting` the ont- Waicl swinging nioveinent of the hood ineinbei's, Snell stop Ineens being` arranged to ai'iest the o-ntwaifcl inm/'einent oi tlie nood ineinloes when the centers of gravity thereof reach points outside the vertical planes of the pivots, ano the two hood members engaging along; their Yeitieal innei1 edges when the eenteis of gravity thei'eoil reach points inside of tne vertical pianes of the pivots.

2. A protecting device for a reooi'cling liu1rn Compisinq a base, a pair of lio-od members inoimted upon the base and provided fitl'i hinge members at their lower outer edges? on the base to which said hinge inein ers aie pii'otetl, and. stop nieans on the lugs for limiting the ontivaicl swing,` ing inoveinent ot the hood Inenfiloeis, suoli stog ineens being arranged to arrest the outwaid movement of tlie lioocl nieinloeis when the centers of giavity thefeof ieaeli points ontsicle the Vertical planes o'f tlie pivots, and the two hood members engaging along` their Vertical innei1 edges when the centers oi gia'vi 5y tlieieof ieaoli points inside of the V tical planes of tlie pivot-s.

ln testimony whereof, l haie hereunto subsei-iloefl mj.' naine this 23th (lay of Jan., 1921.

H ERB/le li' Bei/l ARLCH. 

